While we all love a yummy treat at work, stories like this make me wonder if it's wise to go tearing into food made by someone else...
I work in the NICU, and years ago there was a baby whose mother would bring in great home-baked cakes for the staff. What they didn't know was that she was using breastmilk in place of cow's milk. She wasn't doing it to be mean - she honestly didn't understand what was wrong with using breastmilk in cooking, since she had tons of it.
When my dad was young and crazy, he played a trick on his coworkers at the hospital. He's from Wisconsin, and after a visit home to his parents, he brought back a 5-gallon bucket of Door County cherries. Now, eating a ton of cherries by itself is going to send you to the bathroom sooner or later...but he somehow laced them with Ex-Lax for a joke. Nothing really bad come of it except for some pretty uncomfortable coworkers and some seriously gross bathrooms. He didn't get in trouble, as a matter of fact today he's the department head. But he admits he was young and stupid, and he's thankful nothing really bad happened as a result.